Welcome to Green Box Mechanical — a completely new kind of contracting company —
created in response to the demand in Portland for single-source, direct-to-consumer services focused
on plumbing, HVAC and electrical services.

Plumbing, HVAC, and electrical services


The work is performed by talented, Portland-based technicians whose
communication skills rival their trade skills.

Excellent customer service for plumbing, HVAC, and electrical services


As in, we move mountains to give you
an awesome customer experience with your plumbing, HVAC, and electrical needs.

Open for Business

Watch how we are working safely during the coronavirus (COVID-19) to still provide homeowners with air conditioning, HVAC, plumbing, and electrical services that they need.

  • All technicians wear masks and gloves
  • We keep our 6-foot distance even when taking payment
  • Services and estimates can be requested online or by phone
Green Box Mechanical contractors wearing COVID-19 masks

Trusted & Experienced Technicians

Whether it’s a plumbing problem, electrical outlet on the fritz, or an HVAC system in dire need of maintenance—finding the right contractors can be stressful. Green Box Mechanical hires only experienced technicians that you can trust to be detailed and thorough with your project.

Now Hiring Electricians

Green Box Mechanical is now hiring Oregon Licensed Electricians. Send us your resume at jc@greenboxmechanical.com.

  • Extremely competitive salary
  • Safe and clean environment
  • Incredible health and welfare package

Join our team today!

Contact us today.

Our experts can answer all your questions.

Mike Llewelyn - Green Box Mechanical

Mike Llewelyn

Mike has been with Green Box Mechanical since the beginning. Even before the doors opened on May 1st, 2017, he was instrumental in designing, creating and building Green Box Mechanical into the company it is today – a company centered on quality service, integrity and exceptional work ethic. Mike is a dedicated General Manager with over 30 years’ experience in the public and private sectors. Mike brings a personal ethic of environmental stewardship and belief in sustainability, energy efficiency and water conservation to Green Box Mechanical.

Call (503) 222-0555

or send us a message about your furnace project.